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joint restraint

A joint end, gland technology, applied in the direction of pipe/pipe joint/pipe fitting, sleeve/socket connection, through components, etc., can solve problems such as creep, pollution, leakage environment, etc.

Active Publication Date: 2022-04-19
MUELLER INT LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, typical mechanical joint pipe connections do not provide a positive retention mechanism other than the friction of the gasket acting on the flat end of the pipe section
Lack of a positive retention mechanism could break the seal or cause the flat end to pull out of the female socket when the connection is subject to high tension or water hammer etc.
Some mechanical joint pipe connections may include a joint restraint mechanism configured to mechanically engage the flat ends of the pipe; however, existing joint restraint mechanisms can place high stress on the flat ends of the pipe sections, which can cause or deformation, creep and cracking of the flat end of the pipe section during operation
Deformation, creep and cracking can cause seal failure or failure of the pipe section itself, resulting in leaks or environmental contamination

Method used

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Embodiment Construction

[0028] The present invention can be understood more readily by reference to the following detailed description, examples, drawings and claims, as well as the preceding and following descriptions. However, before the present devices, systems and / or methods are disclosed and described, it is to be understood that unless otherwise indicated, this invention is not limited to the particular devices, systems and / or methods disclosed, as such may, of course, vary. It is also to be understood that terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting.

[0029] The following descriptions are provided as enabling teachings of the present devices, systems and / or methods of currently known aspects. To this end, those skilled in the relevant art will recognize and appreciate that many changes may be made to the various aspects of the present devices, systems and / or methods described herein while still obtaining the beneficial re...

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Abstract

The gland includes an annular ring defining a gland bore defining a gland axis and a joint constraint assembly. The joint restraint assembly includes a restraint base, a grip and a spring clip, the restraint base is attached to the annular ring, the restraint base defines a restraint recess; the restraint recess includes a restraint pivot disposed in the restraint recess; the grip is provided with Within the restraining pocket, a grip engages a restraining pivot about which the grip is configured to rotate; a spring clip is disposed within the restraining pocket, the spring clip biasing the grip to rotate inwardly toward the gland axis .

Description

technical field [0001] The present invention relates to pipe connections. More particularly, the present invention relates to joint restraints for mechanical joint pipe connections. Background technique [0002] Mechanical joint pipe connections are a common method for attaching pipe sections to pipe elements such as valves, couplings or fittings (such as tees or elbows) or another pipe. Mechanical joint pipe connections may consist of female sockets, glands, gaskets and pipe sections. The pipe element typically defines a female socket configured to receive the flat end of the pipe section and the gasket. A gland is usually provided which slides over the flat end of the pipe section and is locked by a series of bolts which pull the gland towards the female socket, thereby compressing the gasket. Compression of the gasket causes the gasket to engage the outer surface of the flat end of the pipe section, forming a seal between the pipe section and the element. [0003] Mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L21/00F16L21/04F16L21/08F16L25/04F16L25/10F16L25/14
CPCF16L21/04F16L21/08A62C35/20Y10T29/49826
Inventor A·I·弗科伊尤
Owner MUELLER INT LLC